John Crichton-Stuart, 6th Marquess of Bute, KBE (27 February 1933 – 22 July 1993) was a Scottish peer, benefactor and patron of the arts.
John Crichton-Stuart was born in Mayfair, London on 27 February 1933, fifteen minutes before his twin brother David. As such, he was the eldest son of John Crichton-Stuart, 5th Marquess of Bute and Lady Eileen Forbes, the younger daughter of Bernard Forbes, 8th Earl of Granard and Beatrice Mills Forbes, an American socialite who was the daughter of Ogden Mills.
. He was known as Lord Cardiff before the death of his grandfather in 1947, when he became Earl of Dumfries. He attended Ampleforth College and, after national service in the Scots Guards, studied history at Trinity College, Cambridge.
On 19 April 1955, he married, firstly, Beatrice Nicola Grace Weld-Forester, and they divorced in 1977. They had four children:
He married, secondly, Jennifer Home-Rigg-Percy in 1978. Jennifer, Marchioness of Bute, is a Patroness of the Royal Caledonian Ball.
Crichton-Stuart inherited estates in Wales, England and Scotland, including six castles and a highly esteemed collection of European paintings. On his father's death in 1956, he inherited the title and estates. To settle death duties, he sold property in Cardiff to the city corporation and transferred Robert Adam houses in Charlotte Square, Edinburgh to the National Trust for Scotland. 6 Charlotte Square became the official residence of the Secretary of State for Scotland.
He was Lord Lieutenant of Bute and, later, of Argyll and Bute. As owner of Bute Fabrics, the largest employer on the Isle of Bute, Crichton-Stuart redirected the focus of the company towards designer fabrics and contemporary furniture.